Assignment 2 – Nagios_Nagios_Devops BC = 2330070508

Nagios Assignment - 2

To Be Performed:

1. Create a monitoring service which will check whether Apache2 service is up or not

I’ll continue where I left off in Assignment 1 – Nagios with:

EC2s used and Private IPs

nagios 10.0.1.146 my-linux-host1 10.0.1.164 my-linux-host2 10.0.1.228

I install Apache in my-linux-host1 and my-linux-host2 and confirm service is running

sudo apt-get install apache2
sudo systemctl status apache2

In my Nagios setup, the Current Status > Services section currently only displays information about the localhost. To expand this, I aim to monitor the Apache service on both of our hosts, host1 and host2.

Creating A Monitoring Service §

In the localhost.cfg file, I located the following block of code for reference:

# Define a service to check HTTP on the local machine.
# Disable notifications for this service by default, as not all users may have HTTP enabled.
define service {

    use                     local-service           ; Name of service template to use
    host_name               localhost
    service_description     HTTP
    check_command           check_http
    notifications_enabled   0
}

Using the code block found in nagios.cfg as a reference, I appended the following configuration to both host1.cfg and host2.cfg. In the host2.cfg file, the only change I made was to the host_name parameter, as shown in this sample from host1.cfg:

define service {
    use                     local-service
    host_name               my-linux-host1
    service_description     Apache Check
    check_command           check_http
    notifications_enabled   0

Restarting Nagios

sudo systemctl restart nagios

Now, if I return to Nagios and navigate to Current Status > Services, it now displays two new services being monitored, each on their respective host, my-linux-host1 and my-linux-host2.

Success